Question

which sentence is a correct statement of newtons second law?
every action has an equal and opposite reaction.
an object in motion stays in motion, and an object at rest stays at rest unless acted upon by a net force.
every mass in the universe is attracted to every other mass in the universe.
when an object experiences a net force, it will accelerate at a rate determined by its mass

Explanation:

• "Every action has an equal and opposite reaction" is Newton's third law.
• "An object in motion stays in motion, and an object at rest stays at rest unless acted upon by a net force" is Newton's first law.
• "Every mass in the universe is attracted to every other mass in the universe" is the law of universal gravitation.
• Newton's second law states that when an object experiences a net force \(F\), it will accelerate \(a\) at a rate determined by its mass \(m\) (\(F = ma\)).

Answer:

When an object experiences a net force, it will accelerate at a rate determined by its mass.